The captain of a Klingon battlecruiser that confronts the Enterprise at Cajitar IV in 2259, with whom an acting Captain Spock shares bloodwine to keep the fragile peace.
D'Chok appears in The Broken Circle, the opening episode of the second season of Strange New Worlds. He commands the Klingon warship that arrives at the dilithium mining world Cajitar IV, a planet shared by the Federation and the Empire under the terms that ended the Klingon War.
Spock has taken the Enterprise there without authorisation after a distress call from La'an Noonien-Singh, and the crew uncover a syndicate plot to restart the war by attacking the Klingons with a counterfeit Federation starship. Spock is forced to destroy the vessel in front of D'Chok's ship and then has to explain himself.
Rather than fight, Spock invites the captain aboard and matches him drink for drink in bloodwine. D'Chok is impressed and departs on good terms, leaving the Vulcan with a memorable hangover.